Add Changelog generator

package.json

@@ -52,6 +52,7 @@
     "jest": "^26.4.2",
     "lint-staged": "^10.5.3",
     "minimist": "^1.2.5",
+    "node-fetch": "^2.6.1",
     "prettier": "1.17.1",
     "rollup": "^2.7.3",
     "rollup-plugin-commonjs": "^10.1.0",

scripts/generateChangelog.js

@@ -1,29 +1,76 @@
-// 'https://api.github.com/repos/lucide-icons/lucide/compare/v0.13.0...master'
-import output from './tempOutput.json';
+import githubApi from './githubApi';
 
-const iconFolderRegex = /icons\/(.*)\.svg/g;
+const fetchCompareTags = oldTag =>
+  githubApi(`https://api.github.com/repos/lucide-icons/lucide/compare/${oldTag}...master`);
 
-const changedFiles = output.files.filter(
-  ({ filename }) => !filename.match(/site\/(.*)|(.*)package\.json/g),
+const iconRegex = /icons\/(.*)\.svg/g;
+const iconTemplate = ({ name, pullNumber, author }) =>
+  `- \`${name}\` (${pullNumber}) by @${author}`;
+
+const topics = [
+  {
+    title: 'New icons 🎨',
+    template: iconTemplate,
+    filter: ({ status, filename }) => status === 'added' && filename.match(iconRegex),
+  },
+  {
+    title: 'Modified Icons 🔨',
+    template: iconTemplate,
+    filter: ({ status, filename }) => status === 'modified' && filename.match(iconRegex),
+  },
+  {
+    title: 'Code improvements ⚡',
+    template: ({ title, pullNumber, author }) => `- ${title} (${pullNumber}) by @${author}`,
+    filter: ({ filename }, index, self) =>
+      !filename.match(iconRegex) && self.indexOf(filename) === index,
+  },
+];
+
+const fetchCommits = async file => {
+  const commits = await githubApi(
+    `https://api.github.com/repos/lucide-icons/lucide/commits?path=${file.filename}`,
   );
 
-const addedIcons = changedFiles.filter(
-  ({ status, filename }) => status === 'added' && filename.match(iconFolderRegex),
-);
-
-const modifiedIcons = changedFiles.filter(
-  ({ status, filename }) => status === 'modified' && filename.match(iconFolderRegex),
-);
-
-// const addedIconsWithcommits
-// console.log(modifiedIcons);
-
-const topics = {
-  newIcons: 'New Icons',
-  modifiedIcons: 'Modified Icons',
-  codeChanges: 'Code improvements',
-  docs: 'Docs',
-  lucide: 'Lucide Package',
-  lucideReact: 'Lucide React Package',
-  lucideVue: 'Lucide Vue Package',
+  return { ...file, commits };
 };
+
+// eslint-disable-next-line func-names
+(async function() {
+  const output = await fetchCompareTags('v0.13.0');
+  const changedFiles = output.files.filter(
+    ({ filename }) => !filename.match(/site\/(.*)|(.*)package\.json|tags.json/g),
+  );
+
+  const commits = await Promise.all(changedFiles.map(fetchCommits));
+
+  const mappedCommits = commits
+    .map(({ commits: [pr], filename, sha, status }) => {
+      const pullNumber = /(.*)\((#[0-9]*)\)/gm.exec(pr.commit.message);
+      const nameRegex = /^\/?(.+\/)*(.+)\.(.+)$/g.exec(filename);
+
+      return {
+        filename,
+        name: nameRegex && nameRegex[2] ? nameRegex[2] : null,
+        title: pullNumber && pullNumber[1] ? pullNumber[1].trim() : null,
+        pullNumber: pullNumber && pullNumber[2] ? pullNumber[2].trim() : null,
+        author: pr.author.login,
+        sha,
+        status,
+      };
+    })
+    .filter(({ pullNumber }) => !!pullNumber);
+
+  const changelog = topics.map(({ title, filter, template }) => {
+    const lines = mappedCommits.filter(filter).map(template);
+
+    if (lines.length) {
+      return [`## ${title}`, ' ', ...lines, ' '];
+    }
+
+    return [''];
+  });
+
+  const changelogMarkown = changelog.flat().join('\n');
+
+  console.log(changelogMarkown);
+})();

scripts/githubApi.js

@@ -0,0 +1,22 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+import fetch, { Headers } from 'node-fetch';
+
+const githubApi = async endpoint => {
+  const headers = new Headers();
+  const username = 'ericfennis';
+  const password = process.env.GITHUB_API_KEY;
+
+  headers.set(
+    'Authorization',
+    `Basic ${Buffer.from(`${username}:${password}`).toString('base64')}`,
+  );
+
+  const res = await fetch(endpoint, {
+    method: 'GET',
+    headers,
+  });
+
+  return res.json();
+};
+
+export default githubApi;

yarn.lock

@@ -4636,6 +4636,11 @@ node-environment-flags@^1.0.5:
     object.getownpropertydescriptors "^2.0.3"
     semver "^5.7.0"
 
+node-fetch@^2.6.1:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
+  integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
+
 node-int64@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"